I am trying to parse out the recent load, from the output of this command – The first one after the load average: – I was using this, which worked – However, I realised that the value I am looking for may not always be the 10th variable. Hence I am trying to use regex here, but unfortunately…
python subprocess module hangs for spark-submit command when writing STDOUT
I have a python script that is used to submit spark jobs using the spark-submit tool. I want to execute the command and write the output both to STDOUT and a logfile in real time. i’m using python 2.7 on a ubuntu server. This is what I have so far in my SubmitJob.py script The strange thing is, when I
tcpdump filename with -C and -W option
I am trying to capture tcpdump in Linux and I used the -C and -W option to enable capturing tcpdump with file size limited to 250MB. On the other hand, the output I am getting is But I would like to know how to make the output file name into: Thanks for any help you can suggest! Answer Tcpdump has
If [ $? -ne 0 ]; not working?
I am trying to detect a running service and if not there, try to do something: The service is clearly there but still I am getting “Service not there.” I read about the exit code $? I think maybe the exit code in a series of commands might have effect on what we wanna test? So I am not sure
Moviepy OSError Exec format error – Missing Shebang?
I am attempting to use MoviePy with Python 3.2.3 on Raspian. I have installed it (for Python 2.7, 3.2 and 3.5… long story) and the line works fine. When I try which is the most basic command, it gives the error I have researched this error, and it appears to be something to do with a shebang line missin…
How to compile python with PyInstaller in Linux
I am using Python 3.5.2 , PyQt 5.7 , PyInstaller 3.2 and I’m in Linux I can compile file.py with : pyinstaller file.py but when I run the binary file in Build folder it returns: Error loading Python lib ‘/home/arash/build/file/libpython3.5m.so.1.0’: /home/arash/build/file/libpython3.5m.so.1.…
Join Windows 7 to SAMBA+LDAP PDC
In my smb.cfg I have follow command for adding machine user to my PDC server: When I want to join new Win7 machine to my PDC with root user (this is default configuration) I got follow message: I tried adding follows, but without success (same error message) Note: If I run command manually: /usr/sbin/useradd …
Write magnetic tape end of record linux
Task is create two record with different sizes within one file entry. I’m using python 3.4.5 for testing: Is there an ioctl opt code that will initiate a new record on the tape with variable record length. Or any other way to work around this bug? Answer Issue was with tcopy, it uses block size on devic…
Option -l of exec shell command
Could you please clarify on the use of -l option of exec shell command. I didn’t notice any difference when I ran exec ls | cat and exec -l ls | cat. Answer The -l option of exec adds a – at the beginning of the name of your command. For example: Note the – everywhere before diff. The point
PHP isn’t able to read file
I’m stuck trying to open a file with fopen in php. I checked following items: chmod for statuseing.php 0777 owner is www-data with groud www-data script is running as user www-data groups are uid=33(www-data) gid=33(www-data) groups=33(www-data) pwd is /var/www/html as expected the path the scripts want…